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`UNITED STATES PATENT Erica.

CHARLES w. HAsELToN AND eRANviLLE r. FELT, on PETERBoRoUGH, N. H.

sEAM-Paessme MACHINE.

SPECIFICATION farming part of Letters Patent o. 357,482, dated February8, 1887. Application filed June l5, 1886. Serial No. 205.269. (Nomodel.)

Be it known that-we, CHARLES W'. HAsEL TON and GEANvILLE P. FELT, ofPeterborough, in the county of Hillsborough and State of New Hampshire,haveinvented certainnew and useful Improvements in Seam-PressingMachines, of which the following is a specification. Our inventionrelates to seam pressing'or rubbing machines employed in the manufactureot' boots and shoes, and has for its ob- `ject to provide acontrivance'of that character which shall be simple in construction andconvenient in use, and by which the seam maybe guided with exactness andcertainty to the proper point on the pressing or rubbing devices, and bethoroughly and smoothly pressed down or flattened in the desired man-11er.

To these ends our invention consists in the improvements which we willnow proceed to describe, so that those skilled in the art may be able tomake and use the same, the invention being particularly set forth in theclaims appended to the description.

Of the drawings hereto annexed and forming a part of this specification,Figure l represents a front view of the machine constituting ourinvention. Fig. 2 represents anend view thereof'. Fig. 3 represents asection on the linex :c of Fig. l. Fig. 4 represents a section on theline y y of Fig. 2. Figs. 5 and Gare diagrammatic views designed torepresent the seam in the process of and after being operated upon. Y

Similar letters of reference indicate similar parts in all of thefigures.

a represents the bed of the machine, having a post or standard, b,secured thereto or formed integral therewith, from the upper end ofwhich projects an arm, c, supporting a shaft, d, so that the latter maybe revolved therein.

To o`ne end of shaft d the driving-pulley e is keyed or otherwise.properly secured, which pulley is adapted to receive a belt or banddriven by any suitable prime motor, therebyT communicating motion to themovableparts of the machine. To the end of shaft d opposite that atwhich the driving-pulley e is afxed thereto is secured a roller, havinga rounded groove or groove of convex shape formed in its face orperiphery, which groove is transversely ribbed or iiuted in its center,as shown in Figs. l and 6, and for a purpose to be presently explained.

g represents a strip of metal suitably secured to the side of arm c atits forward end, to the end of which strip is relnovably attached aguide, h. consisting of a piece of metal curved rearwardly toward apoint underneath rollerf, and having a square groove, t', formed 4in itsunder face, the lower sides or faces of the walls of which groove arerounded or Hare outwardly and downwardly, as seen in Fig. l.'

Extending outward from post b between the bed a and arm cis another arm,j; the forward end of which is fitted toguide andsupportavertical bar,7c, the upper end ot' which is forked, and the upper ends of the arms oft-he fork are adapted to support the axle or journals of a roller, Z,having a convex periphery conforming substantially t'o the convex grooveformed in the periphery ofthe rollerf. Said rollerZ is supporteddirectly under rollerf, and so that the rounded face of the former willextend into iiie groove formed in the'face of the latter.

Bar 7c has a screw-threaded hole formed in its lower end, into which thescrew-threaded stem m of the footnis fitted. rllhe foot n rests upon astep, o, of rubber or similar material, secured to the bed a, andsaidfoot has its outer surface or periphery preferably roughened, so thatbar Zr, carrying roller Z, can be adj usted vertically to a limitedextent by the turning of said foot, as will be readily understood. l

A bar or strip, p, secured by screws or in any other suitable manner tothe forward end of armj, is provided on its upper end with a guide, q,consisting of an invertedVshaped piece of any suitable length, havinglthe forward end of its upper edge extending into the square groove t'of'guide Zz., as clearly shown in Fig. 3.

The operation of our invention may now be explained and readilyunderstood. The parts seamed together, as represented in Fig. 5, areplaced astride the guide q, (which,'in addition to operating as aguide,serves as a bed'or support for the materia-1,) so that the projectingportions s of the seam will enter groove t' in guide h, and be therebymaintained in vertical position as it is drawn between rollers f Z,

IOO

as shown in Fig. 6, and all liability ot' onepart of the seam beingpressed upon the other or the two parts being unduly spread apart isavoided.

The ribbed or iluted character of the face of' the groove in roller fserves to draw or feed the seam through between` the rollers withcertainty, and the rubber step o operates to compensate at a uniformdegree of tension for any unevenness in the thickness or bulk of thematerial comprising the seam.

The degree of pressure on the seam can be regulated to a nieety by meansof the screw'- threaded connection of the foot a with the bar k, whichsupports the lower presser-roller, Z. By this means the distance betweenthe two presserrolls is regulated for seams of varying bulk, resultingfrom the use of material ot' dit'- ferent thicknesses.

Guide h is made removable to render it interohangeable with others, eachhaving a groove, t', of different size or width, thus permitting themachine to be equipped with a guide, l1, having a groove, 1', suitableto the size or bull; of the scatti to be pressed.

le claim- 1.- A seam-pressing machine provided with two rollers arrangedwith their peripheries 'opposite to each other, supports for saidrolle'rs, mechanism consisting of a foot provided with a screw-threadedshank having a screwthreaded connection with the support of one of therollers for adjusting the support of the latter rollei` to bring itsperiphery nearer to or remove it farther from the periphery of the otherroller, a step of rubber or analogous material for said foot to restupon, guides for conducting the material to bepressed in proper positionbetween said rollers, and mechanism, substantially as described, forrotating one of said rollers, all arranged and operating as and for thepurposes hereinbefore set forth.

2. A seam-pressing machine provided with two rollers arranged with theirperipheries or faces opposite to each other, mechanism, substantially asdescribed, for rotating one of said rollers, and guides /L and q, forconducting the material tobe pressed in proper position between therollers, guide It being provided on its face with the single squaregroove i, and guide q being in form substantially that of an inverted V.as and for the lpurposes hereinbefore set forth.

3. rIhe combination, with roller Z, of bark, having a screw-threadedhole formed in its lower end, foot n, having a screw-threaded stem, m,adapted to be screwed into the screwthreaded hole ofthe bar, and step o,of rubber or analogous material, for the foot to rest upon, whereby theposition of said roller may be adjusted vertically and the yieldingpressure ofthe step rendered regular, substantially as and for thepurposes hereinbefore set forth.

4. The combination of the guides h and q and their supports, the formerguide being provided on its face with the square groove z', and thelatter guide being of an inverted-V shape, as set forth.

In testimony whereof we have signed our naines to this specification, inthe presence of two subscribing witnesses, this 8th day of June, 1886.

CHARLES W'. H ASELTON. GRANVILLE P. FELT.

\Vitnesses:

EZRA M. SMITH, J C. H. HAYWARD.

